Home Postcodes by state VIC 3437 Postcode 3437 3437 is the postcode for 3 localities in VIC: Bullengarook, Gisborne and Gisborne South. Localities with postcode 3437BullengarookVICGisborneVICGisborne SouthVIC Postcode 3437 State or territory Victoria (VIC) Localities 3 Council area Macedon Ranges Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3435 · Postcode 3438